[b]Adjacent angles[/b] are two angles that share a common vertex and a common side, but do not overlap.[br] When two lines intersect, they form four pairs of adjacent angles.[br]The sum of adjacent angles at intersecting lines is [math]180^\circ[/math].[br][b]Linear Pair:[/b][br]A special case of adjacent angles is a [b]linear pair[/b]. A linear pair is formed when two adjacent angles add up to 180 degrees. In other words, they form a straight line.

[b][i]Move Points A, B, C, D to alter the angles formed at the intersection. [/i][/b][br]1. Identify Vertical Angles. What relationship exist between pairs of [b]vertical angles[/b]? [br]2. Identify Linear Pairs. What relationship exist between [b]linear pairs[/b]? [br]3. Identify Adjacent Angles. What relationship exist between [b]adjacent[/b] angles?[br][br]Answer these questions in the chat on zoom, send privately.